 package pro.ccy.servlet;

import pro.ccy.JdbcUtils;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

@WebServlet(urlPatterns = "/user/ccyadd")
public class UserAddServlet extends HttpServlet {
    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        // 1.取值
        String name = req.getParameter("n");
        String username = req.getParameter("u");
        String id = req.getParameter("i");

        // 2.储值
        if (id != null && !"null".equals(id)) {
            // 存在id,执行更新
            String sql = "UPDATE `user` SET `name`=?,username=? WHERE id=?";
            JdbcUtils.modify(sql,name,username, id);
        }else{
            //存在id,执行插入
            String sql = "INSERT INTO `user` (username,`password`,`name`) VALUES(?,MD5('666'),?)";
            JdbcUtils.modify(sql, username, name);
        }
        // 3.跳转
        resp.sendRedirect("/ccy/user-list.jsp");
    }
}
